A new genus, Coleusia, is established for Leucosia species with segments 3-5 of the male abdomen fused, the shaft of the male’s first pleopod coiled thrice on its axis, bearing distally a setose lobe and an elongate apical process: L. biannulata Tyndale-Biscoe & George, 1962, L. magna Tyndale-Biscoe & George, 1962, L. signata Paulson, 1875, and L. urania (Herbst, 1801), and a new species: C. rangita. The species are described or redescribed and illustrated, extended synonymies are given, and a key for their identification is provided.

Decapoda, Leucosiidae, Leucosia, Coleusia, new genus, new species, Indo-Pacific
Zoologische Mededelingen

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Naturalis journals & series

Galil, B.S. (2006). Contributions to the knowledge of Leucosiidae V. Coleusia gen. nov. (Crustacea: Brachyura). Zoologische Mededelingen, 80(4), 55–69.